Computer shutter cam plate retaining bracket



Nov. 3, l53

COMPUTER Filed July 20, 1950 J. M. PHILLIPS SHUTTER CAM PLATE RETAINING BRACKET 2 SheetsSheet l INVENTOR, z {Zap a Nov. 3, 1953 .J. M. PHILLIPS COMPUTER SHUTTER CAM PLATE RETAINING BRACKET 2 Sheets-Sheet 2 Filed July 20, 1950- INVENTOR. 772 ga 5,

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ATTU R N EYE Patented Nov. 3, 1953 COMPUTER SHUTTER CAM PLATE RETAINING BRACKET John Masters Phillips, Norfolk, Va. Application July 20, 1950, Serial No. 174,973

3 Claims.

This invention relates to attachments or improvements in machines now on the market and particularly gasoline computing machines used in filling stations, and in particular this invention relates to a bracket attached to a gasoline computing machine for retaining the shutter cam plate in position whereby the shutter cam plate may readily be removed and replaced without taking down the major part of the machine.

The purpose of this invention is to provide improvements in the construction of gasoline computing machines whereby the peaning over of the end of the tubular shaft on which the shutter cam plate is mounted is eliminated so that the shutter cam plate may readily be removed and replaced.

This invention is an improvement over the counter mechanism of Patent #2,264,557 in that a plate forming a bracket is secured by the screws 4| of the machine of the patent on the end of the cross connection 40 and an arm of the bracket extends over the T-shaped lever I83 particularly as illustrated in Figs. 6 and 18 of the patent, the lower end of the arm of the bracket being positioned on the end of the transverse shaft 82 of the machine of the patent, the shaft being referred to as the pivot point I84 in Fig. 18.

In the conventional method of securing computer shutter cam plates on the tubular mounting shaft the end of the shaft is provided with an annular recess and, with a washer placed over the cam plate on the recess end of the shaft the end of the shaft is peaned over permanently securing the shutter cam plate on the shaft. The shutter cam plate is subjected to abuse and eventually wears to such an extent that replacement thereof is necessary. With the end of the shaft peaned over it is necessary to take down a substantial part of the machine to remove the shaft in order to remove the shutter cam plate. With this thought in mind this invention contemplates a method of holding the shutter cam plate in an annular recess in the end of the shaft without peaning the shaft and whereby the cam plate is removed by removing a bracket attached to the frame of the machine by screws.

The object of this invention is, therefore, to provide means for securing shutter cam plates on shafts of a gasoline computing machine where by the cam plate is positively secured in position and at the same time may readily be removed for reconditioning and replacement.

Another object of the invention is to provide an improved mounting for shutter cam plates of computing machines whereby the plate is removed and replaced without removing the shaft on which the plate is mounted upon the machine.

A further object of the invention is to provide an improved mounting for shutter cam plates of gasoline computing machines which is comparatively simple and economical.

With these and other objects and advantages in view the invention embodies a bracket attached to the upper end of the frame of a computing machine with an arm extended from the bracket downwardly over the end of a tubular shaft upon which the shutter cam plate of a computer machine is mounted and in which r means is provided on the arm for urging the cam plate against a shoulder of the mounting shaft.

Other features and advantages of the invention will appear from the following description taken in connection with the drawings wherein:

Figure l is a side elevational view showing part of a gasoline computing machine illustrating the position of the bracket for holding the cam plate of the machine in position.

Figure 2 is a detail showing a plan view of the cam plate holding bracket.

Figure 3 is a view showing an end elevational view of the bracket.

Figure 4 is a plan view of the bracket showing a modification wherein a roller carried by an arm of the bracket is replaced by a bar.

Figure 5 is a side elevational view of the bracket shown in Figure 4.

Figure 6 is a similar View showing the lower part of the arm of the bracket illustrating a projection of a different type provided on the arm.

Figure 7 is a detail taken on line 'l-! of Figure 6 showing the formation of the projection of the arm.

Figure 8 is a front elevational view, similar to that shown in Figure 5 illustrating a modification wherein an arm of the bracket extends straight downwardly over the upper part of the frame. I

Figure 9 is a vertical section taken on line 99 of Figure 8'illustrating the type of bracket shown in Figure 8.

Figure 10 is a detail showing a section through the shutter cam plate mounting shaft illustrating the conventional method of mounting a shutter cam plate on the shaft.

Figure 11 is a similar view illustrating the improvement of this invention wherein the shutter cam plate is held in an annular recess in the end of the mounting shaft by an arm extended over the outer surface of the cam plate and fitted over the end of the shaft.

Figure 12 is a similar view illustrating a further modification wherein the arm of the retaining bracket is positioned against the end of the shaft.

Figure 13 is a view illustrating a further modification wherein the end of the mounting bracket is provided with a slot to receive the tie bar of the frame.

Figure 14 is an edge view of the end of the bracket shown in Figure 13.

Figure 15 is a view showing a still further modification illustrating'the lower end of the arm of the bracket shown in Figures 8 and 9 with the arm provided with a spacing bar instead of a roller.

Figure 16 is a sectional plan taken on line |6-|6 of Figure 15 showing the position of the spacing bar on the inner surface of the arm of the bracket.

Referring now to the drawings wherein like reference characters denote corresponding parts the shutter cam plate retaining bracket of this invention, as disclosed in Figures 1, 2 and 3 includes a base It! adapted to be positioned on a cross connection 46 in the machine of the above referred to patent, with a recess positioned to receive a rib of said cross connection and with openings l2 and I3 positioned to receive screws 25 and 26 similar to the screws 4| of the patent, and an arm l4 having an opening |5 in the lower end positioned to receive the end l6 of a tubular mounting shaft I1 of the computing machine, the shaft being referred to by the numeral 82 in the patent, and the arm is also provided with a roller l8 journaled in a recess l9 by a shaft 20.

With the bracket formed in this manner the peaned end 2| of the mounting shaft 82 of the patent is removed and the shutter cam plate 22 is positioned in a, recess 23 in the end of the shaft as illustrtaed in Figure 11, and with the cam plate in position the retaining bracket is mounted on the upper end of the cross connection or frame 24 with the bolt holes l2 and I3 registering with threaded openings in the cross connection and the bracket is secured in position by the screws 25 and 26, replacing the screws 4|.

With the bracket in position the opening |5 of the arm I4 is positioned over the small end N5 of the tubular shaft H, from which the peaned end 2| of the shaft 82 of the machine of the patent has been removed, and in which a washer 5 of the conventional shaft 82 is positioned.

In the design illustrated in Figures 4 and 5 a bracket, similar to the bracket shown in Figure 1, is illustrated and the roller I8 is replaced by a projection 21 that is positioned on the inner surface of an arm 28, similar to the arm l4 and the arm extends downwardly from a base 29 similar to the base It). The base 29 is also provided with a V-shape notch 30 to receive the tie bar of he frame and bolt holes 3| and 32 that are positioned to receive the screws 25 and 26.

The lower end of the arm 28 is provided with an opening 33 similar to the opening I5, and which is positioned to receive the end I6 of the mounting shaft H.

In the design illustrated in Figure 6 an arm 34, similar to the arm I4 is provided with an indentation 35 forming a projection 36 on the inner surface of the arm and the lower end of this arm is also provided with an opening 31 for receiving the end l6 of the shaft |1, similar to the opening l5.

The depending arm of the retaining bracket may, therefore, be provided with a roller or a projection for engaging the outer surface of the shutter cam plate for positively urging the cam plate against the shoulder 23 of the mounting shaft.

A further modification of this type of bracket is illustrated in Figures 13 and 14 wherein a V-shape recess H is replaced by a slot 31 that is positioned in the inner edge of a base 38, similar to the base In, and the base 38 is provided with bolt holes 39 and 40, similar to the holes l2 and I3, and these holes are also positioned to receive the screws 25 and 26.

A further modification of the type of bracket illustrated in Figure 1 is shown in Figure 12 wherein the lower end of an arm 4|, similar to the arm |4 bears against the end 42 of a mounting shaft 43, similar to the shaft l1 and the inner surface of the arm 4| bears against a hub 44 on the shutter cam plate 45. The cam plate is positioned in a recess 46 in the shaft 43 and held against a shoulder 41 by the arm 4|.

In the design illustrated in Figures 8 and 9 a different type of retaining bracket is shown wherein an arm 50 extends downwardly from a U-shape mounting clamp 5|. The clamp is provided with an upper arm 52 having bolt holes 53 and 54 therein and a lower arm 55 having bolt holes 56 and 51 therein that register with the bolt holes 53 and 54, respectively, and that are positioned to receive the screws 25 and 26 of the frame 24. The lower arm is also provided with a slot 58 that is positioned to receive the tie bar of the frame.

The lower end of the arm 50 of the bracket shown in Figures 8 and 9 is provided with an opening 59 that receives the end H; of the mounting shaft l1, similar to the opening l5 and a roller 60 is journaled between arms 6| and 62 through a shaft 63. The roller 60 is positioned similar to the roller l8 whereby with the bracket mounted on the machine the roller engages the outer surface of the shutter cam plate.

The lower end 64 of an arm, similar to the arm 50, of a retaining bracket is illustrated in Figures 15 and 16 wherein the lower end of the arm is provided with an opening 65 that is positioned to receive the end |6 of the mounting shaft |1, similar to the opening l5, and instead of using a roller on the arm, the arm is provided with a spacing or contact block 66 that extends inwardly to engage the outer surface of the shutter cam plate.

It will be understood, therefore, that a retaining bracket of various types and design may be provided for securing the shutter cam plate on the end of the mounting shaft of gasoline computing machines so that the cam plate may be secured in position without peaning over the end of the shaft. By this means it is only necessary to remove the retaining bracket and pry the cam plate from the end of the shaft in order to recondition or replace the cam plate.

In computing machines of this type and in particular gasoline computing machines a tubular mounting shaft is not removable and in order to repair the cam it is necessary to remove and replace the entire side frame of the machine. This is a costly operation.

With the shutter cam plate secured in position in this manner the plate may readily be removed by removing the bracket so that the cam plate may be reconditioned or replaced without removg the mounting shaft l1. To remove the cam machine, an arm positioned at a right cam plate. JOHN MASTERS PHILLIPS.

References Cited in the file 01' this patent UNITED STATES PATENTS Number Name Date 1,713,860 Zubaty et a1 May 21, 1929 2,046,163 Helgeby June 30, 1936 2,088,098 Susor July 27, 1937 

